JLight removed

Author: spring-haru

_config.yml

@@ -78,7 +78,6 @@ launch_buttons:
   thebelab                  : false  # Add a thebelab button to pages (requires the repository to run on Binder)
   thebe                     : false  # Add a thebe button to pages (requires the repository to run on Binder)
   colab_url                 : 'https://colab.research.google.com' # The URL of Google Colab (https://colab.research.google.com)
-  colab_url                 : 'https://haruyama-kobeu.github.io/jlite/'
 
 repository:
   url                       : 'https://github.com/Py4Macro/py4macro.github.io'  # The URL to your book's repository